John Dennis wrote:
> On 11/24/2010 02:16 PM, Simo Sorce wrote:
>> That said I am starting thing that having a grammar that is powerful
>> enough to express all possible combinations an admin can think of is
>> not possible to get done right w/o making it extremely complicated.
> When the HBAC rules first came up over a year ago I pointed out how
> similar the issue was to the recurrence rules in ical and caldav. I
> also pointed out how the committees involved struggled to get this
> right and not fall victim to excessive complexity. The truth is, it's
> a hard problem, it's no surprise we discover we're struggling with it
> too.
> I haven't been following the whole discussion here so maybe I'm off
> base but I continue to wonder why we aren't looking at open standards
> that address many of the issues raised here with respect to localized
> time recurrence and which also happen to have open source
> implementations for evaluating the rules expressed in the grammar.
We looked at ical and caldev but the grammar for those looked
excessively complex. We hoped that we can reduce it to just the part we
need to actually reduce the amount of work and potential errors.

Thank you,
Dmitri Pal

Sr. Engineering Manager IPA project,
Red Hat Inc.

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